Unifold car-diaphragm.



H. H. ISCHROYER.

I UNIFOLD CAR DIAPHRAGM APPLICATION FILED APR.22. 1915.

1,276,272.. Patented Aug. 20, 1918.

3 SHEETS-SHEET l- H; H. SCHROYER.

UNIFOLD CAR DiAPHRAGM. APPLICATION mm APmzz, ms.

1,276,272. Patented Aug. 2 0, 1918.

11.11, SCHROYER.

UNIFOLD CAR DIAPHRAGM. APPLICATION FILED APR.22. l9l5.

1,276,272. Patented ug. 20, 1918.

3 SHEfiTS-SHEET 3.

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HARRY H. scnRoYER, or CHICAGO, LLINoIs, ssrcnon r0 DUNBAR MANUFACTURING COMPANY, or CHICAGO, ILLInoIs, A CORPORATION or ILLINOIS.

UNIFOLD GAR-DIAPHRAGM.

f all z vlw mz't may concern Be it known that I, HARRY H. SGHROYER, a citizen of the United States, and a resident of the city of Chicago, in the county of Cook and State of Illinois, have invented certain new. and useful Improvements in Unifold Oar-Diaphragms, and I do hereby declare that thefollowing is a full, clear, and exact description of the same, reference being had to theaccompanying drawings, and to the numerals of reference marked thereon,

wvhich form a part ofthis specification.

' This invention relates to a car diaphragm constructed of a single piece of fabric formed or. folded in such a manner as to form the legsas well as the'top of the diaphragm.

- 1It is an object of this inventionto construct an expandible vestibule diaphra' composed of a'unitary strip of fabric folded to forinthe top and leg members of the diaphragm. v

It is also an object of this inventionfto construct an expandible vestibule diaphragm 25.

composed of a unitary strip of fabric folded orarched outwardly to form the legs of the diaphragm, and withthe top member folded inwardly affording an outwardly concave trough at the top of the diaphragm.

" Itis also an object of this invention to construct a vestibule diaphragm wherein the fabric forming the legs is folded convexly outward and the top is folded convexly in ward.

It is furthermore an important-object of thisinvention to construct 'a unifold, one piece expandible vestibule diaphragm wherein a single strip of fabric is folded to afford leg members which are convex outwardly, and a top member which is convex inwardly, and provided with suitable reinforcing velements at the different lines of fold between the top and leg members.

It is finally an object of this invention to construct an improved type of unifold diaphragm which, by slight modification, may

be constructed to afiord an inclined or slop-- ing top member to effectually shed water and other matter falling thereon.

The invention (in a preferred form) is illustrated in the drawings and hereinafter more fully described.

In the drawings:

. members of the diaphragm.

Specification of Letters Patent. Patented Aug; 20 1918. Applicationfilerl April 22, 1915. Serial No. 23,102. I

Figure '1 is aside elevation of a 'diaphragm constructed according to the principles of my invention shown attached to the Fig. 3 is a vertical section taken on linev of Fig.2, with parts shown in elevation.) I V Fig. 4 is a detail section taken on line 44 of Fig. 2.

Fig 5 is a fragmentary top plan view at the Junction of the top and one Fig. 6 illustrates a modified connection between the side and to members taken on line 66 of Fig. 7 c

Fig. 7 is an exterior view thereof. Fig. 8 is a'view similar to Fig. 2, of a modified form of device, shown broken away.

"Fig. 9is a fragmentary side viewthereof atthe upper end of the diaphragm. 7 Fig. 10is a section taken on line 10-l0 of Fig. 8, illustrating the fabric'prior to being folded into Fig. 9.

As shown in the drawings: The diaphragm consists of a top member 1, and leg members-2 and 3, respectively,

which are formed from a single strip of fabric by folding the, leg members convexly outwardand the top member convexly inward to afford a trough. The fabric at the ,lower end of the legs '2 and 3, is turned up atu as indicated by the reference numeral 4c, around'the'interior of said legs to reinforce the same at this point. At the junction between the arched or outwardly of the leg I thetrough shape shown in Y concave troughing'strip 1,- which affords the top member of the diaphragm, and the outwardly convex arched portion of the fabric forming the legs 2 and 3, thereof, are stitched reinforcement members 5, which serve to prevent breaking of the fabric at this point, and to assist further in weatherproofing the connection. The inner edges of the legs of the diaphragm are attached to the car by means of metal strips 6, and the outer edges of the top member 1, are likewise held attached to the car body by means of metal strips 7. The opposite corresponding edges of said top and leg members are secured to a faceplate 8, by means'of metal attaching strips denoted by the samezcorresponding reference numerals 6 and 7.

In the modified form of device illustrated in Figs. 6 and 7, I have shown a slot 9, cut in the junction between the top member 1, and leg member 2 or 3, as the case may be, which is surrounded by a strip of fabric 10, stitched thereto to reinforce the same and prevent fraying of the rough edges, and the reinforcing member in the present instance denoted by the reference numeral 11, is then stitched thereover in a manner similar to the method of attachment of the reinforcement members 5, hereinbefore referred to.

In the modified form of deviceillustrated in Figs. 8, 9 and 10, I have shown atop member having .a rib 12, extending transversely thereacross at the middle portion thereof, formed by gathering the fabric and stitching the same, as clearly shown in sectional view in Fig. 8, so as to constrict the top member, causing the same to incline upwardly toward its middle, thus afior'ding a watershed.

The attaching bars by which the top member is attached to the vestibule of the car and to the face plate 8, are also angled, being denoted by the referencenumerals 13 and 1 1, to furtherassist said top member in maintaining its warped-form of inclination downwardly on each side of the middle toward the leg portions of the diaphragm. The construction of the modified form is otherwise identical with that described in .Figs. 1 to 5inclusive.

The operation is thought to be obvious, but attention is called to the fact thatrthis type of diaphragm. may be constructed very cheaply and easily adapted to all types of cars. Due to the fact that the leg members are folded convexly outward, a wide enexpansion of the diaphragm without in any way decreasing the width of the entranceway between the leg members. The diaphragm may readily be expanded on one side only, as under such conditionsto which Copies of this patent may beobtained for five cents each, by addressing the Commissionerof fiatents the same is subjected when a car iszrounding a curve without in any way straining or unduly warping the fabric ofthe diaphragm.

I am aware that various details of con struction may be varied through a wide range without departing from the principles of this invention, and I therefore do not purpose limiting the patent granted otherwise than necessitated by the prior art.

I claim as my invention:

1. A. mono-fold diaphragm of the class described comprising a unitary "strip at fabric shaped" to form the top and leg'portions of the diaphragm, the 'top portion curved convexlyinward'lyga transverse rib formed in the top portion causing'the top upwardly causingthe sameto slope downwardly to the ends, and reinforcing'members secured at'the junction of the legs and top.

4. In a device of the class described a mono-fold diaphragm comprising. a unitary strip offabric bent to form the outwardly convexed legs and inwardly convexed top, and transverse reinforcing members secured:

at the junction of the'legs andtop.

5. A mono-fold diaphragm comprising outwardly convexed U shaped legs' joined by an inwardly convexed .U shaped topfdisposed,

in the same plane.

In testimony whereof I have hereunto subscribed my name in the presence ofltwo subscribing witnesses.

HARRY H. SGI-IROYER.

Witnesses CHARLES W. 'HILLs, 'Jr., LAWRENCE REIBs'rEIN.

Washington, D. E. 

